When parsing unified diff hunks, a "No newline at end of file" marker

found within content would be seen as garbage, causing a

MalformedHunkError to be raised. This could easily manifest when

generating stats for metadata sections.
The parser now handles these lines within a hunk. They're counted as

processed, but are otherwise ignored.

Unit tests pass.
Tested this with some repro cases we were sent. All parsing passed.